Help! My Dog Ate String Lights (Vet Answered)
This question has been answered by a vet

Veterinarian & Animal Behaviorist
With nearly two decades in veterinary medicine, Dr. Paola brings hands-on experience across multiple species. A graduate of the University of Guadalajara, she specializes in preventive care, animal welfare, and positive reinforcement training.
The Question
“Dear Dr. Paola,
My chihuahua, Darby, is 11 pounds and ate a string of mini battery-operated Christmas lights. They were on when he ate them, and he rubbed his face on the ground and had white foam flying out of his mouth and was nervous and confused and kept shaking his head violently and trotting around and rubbing his sides of face and looked scared and worried and sad, I’m going to give him a Vaseline sandwich or cotton.” – Kelly
Quick Info about Darby

Hi Kelly,
Thank you for reaching out with your concern about Darby. What you described is deeply concerning and may represent a very serious situation.
If Darby chewed or swallowed battery-operated Christmas lights while they were on, this could expose him to electrical burns, damage from sharp plastic or wire, and even chemical injury if the batteries leaked. The signs you noticed, such as a foamy mouth, confusion, head shaking, and rubbing his face, suggest he could be in pain or already experiencing injury to his mouth or throat.
Given the nature of what he ingested, there is also a very real concern for early involvement of the central nervous system. Confusion and disoriented behavior can sometimes reflect systemic effects from pain, chemical exposure, or electrical injury, all of which are possible if a battery or live wiring was chewed. These signs should not be taken lightly, as they may signal more than just local irritation; they could be the first signs of a progressing, potentially life-threatening condition. Giving him a Vaseline sandwich or cotton is not safe in this context and could cause more harm or delay the urgent care he may need.
Situations involving potential ingestion of batteries or electrical components typically require immediate veterinary attention. When in doubt, an online veterinary service like our own PangoVet can be a helpful first step to assess the urgency and guide your next move.
However, in Darby’s case, based on the information you provided, it is best to take him to an emergency veterinary clinic right away to ensure he receives the care he needs as soon as possible.
I hope he is well,
Dr. Paola

